I'm heading to Texas soon and am badly in need of some dining advice. I'll be in San Marcos for a couple of nights before spending the weekend in San Antonio. I already have a side trip planned to Lockhart, so I think I'm in decent shape on BBQ. In San Marcos, I'm basically set for lunch and am looking for some tasty/casual dinner options. As for San Antonio, I'd like to do one great dinner and Sunday brunch - one of which should be Mexican/Tex-Mex. I'm staying on the south end of Riverwalk and would love to be able to walk to the meals (especially dinner on Sat.), but will have a car if necessary. Many of the current posts in this area seem dated, so a fresh perspective would be much appreciated. Thanks.